Odporność na przebicia materiałów kompozytowych
Journal Title: Autobusy. Technika, Eksploatacja, Systemy Transportowe - Year 2018, Vol 220, Issue 6
Abstract
For structures that carry dynamic loads, the requirements are imposed for safety reasons. The requirements apply to both materials and construction. This requires searching for optimal calculation methods, including geometric and physical nonlinearity, which are results from the construction of the structure. An example is various ballistic structures (ballistic shields), which are hit by bullets in which huge energy is accumulated. In this case, the hitting in the shield with a bullet can be considered as a load due to mass impact. Loads at high strain rates are described by various mathematical models. The mathematical model is complex because a large number of "coefficients" is required, moreover, the obtained test results are not always repeatable. The paper presents the results of shooting multilayer plates with composite materials with 7.62 mm caliber bullets. The shield consisted of three layers, the outer layers were steel or aluminum, the inner layer was natural or modified wood. The samples had the shape of a shield and were 50 mm in diameter and of different thickness. The results of the research allowed to assess the impact of wood modification on its puncture resistance.
Authors and Affiliations
Lesław Kyzioł
Keywords
Related Articles
- EP ID EP561823
- DOI 10.24136/atest.2018.129
- Views 71
- Downloads 0
Konkurencja transportu autobusowego i kolejowego w obsłudze portów lotniczych w Polsce
Głównym celem artykułu jest ocena funkcjonowania sytemu dowozowego do portów lotniczych w Polsce na podstawie badań pierwotnych. Przeprowadzone zostały one metodą wywiadu osobistego w polskich portach lotniczych i obejmo...
Alternatywne źródła zasilania bezzałogowych statków powietrznych
The article discusses problems of current and development of new, alternative sources of power used for small unmanned aerial vehicles. W artykule przedstawiono wymagania i problemy związane z zasilaniem małych bezzałog...
Badania symulacyjne wibroizolowanych torowisk tramwajowych
The article discusses simulation studies of vibroisolated tram tracks on the example of Silesian agglomerations. The numerical model of the substrate was developed and the vibration simulation was performed in the case o...
Problematyka emisji toksycznych składników spalin silników lotniczych
The paper presents the issues of emission of toxic compounds in exhaust gases of aviation engines. The specifics of aviation operations with particular focus on the landing take-off operation (LTO) and methods for estima...
Kierunek rozwoju regulacji prawnych pojazdów autonomicznych w ramach prac Europejskiej Komisji Gospodarczej ONZ (UNECE) oraz Międzynarodowego Związku Telekomunikacyjnego (ITU)
Approaches for the development of legislation of autonomous vehicles in the works of the United Nations economic commission for Europe (UNECE) and the International Telecommunication Union (ITU) The purpose of this artic...